Valve.



l. HARRIS.

vALvE. APPLICATION FILED MAR. 1,5 i915.

Patentedept. 2, 1919.

mE/V701@ WWW.

-J'GHN HARRIS, 0E CLEVELAND, '0I-HO.

vmtvn.

Specification di Letters Patent.

Patented Sept. 2., twig.

Continuation in part of application erial No. 877,649, led December 17, 1914. This application iled. March 415, '1915. Serial No; 14,536.

To all whom t may concern.:

Be it known that l, JOHN HARRIS, a citi- 'Zen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful liuprovement in Valves, of which the l"llhe general object of the invention is to.

provide a' valve of this character which wlll automatically secure a properv contact between' the needle point and the seat even though the stern should be neither perfectly concentric nor' coaxial with that seat. @ther objects are the provision of a .valve which can be made cheaply and quickly, with a maximum of manufacturing. tolerance; the provision of new and simplified guiding l means; the provision vof anoiseless packingless valve; while Vfurther and more limited objects of the invention will appear hereinafter.

Referring to the drawings forming part hereof, Figure 1 represents a central vertical sectional View taken through a faucet having my valve therein; Fig. A2 is a sectional detail corresponding to the line 2-2 of Fig. 1; Fig. '3 is an enlarged sectional view through the .valve point and the cooperating part of the stem; Fig. i is a longltudlnal sectional view takenv through a gas stove valve and mixer, certain vparts` being shown in elevation.

'Describing by reference characters the various parts illustrated herein and with particular reference to Figs. 1-3 inclusive 1 denotes the vertical portion of a faucet casting, 2 the inlet branch, and 3 the outlet branch projecting therefrom. 'The vertical branch 1 is provided withl a chamber 4 which is adapted to communicate with the inlet branch 2 through a valve-controlled passage; The valve controlling said passage comprises a tubular seat 5 which may be threaded into the vertical bore connecting the interior of the branch 2 with' the chamber 4. The valve seat is provided with a flange 58L which may be shaped as a nut to facilitate the application of the seat to and within lthe vertical bore. rllhe valve seat is beveled, as shown at 6, the inclination Vbeing substantially the same. as the inclination of the coperating valve point, to be described hereinafter, but is very much narrower than the beveled portion of the valve j point so as to afford nearly (but not quite) a line contact. ,The diameter of this seat is about midway between the greatest and smallest diameters of the point member.

At its upper end, the vertical branch 1 is provided with an internal thread 7 which is adapted to receive a bushing 8, said bushing being provided with an upper and a lower external thread, indicated at 9 and 1Q, respectively, the lower thread providing means whereby the bushing may be appliedto the vertical body 1. rlhe bushing is also provided with an internal thread 11 of coarse pitch for the reception of the valve stem (to be described hereinafter). lintermediate of the upper and lower external threads,"the bushing 'is provided with a projecting flange 12 constituting a nut Vwhereby it may be screwed into and out of the body 1.

13 denotes a valve stem having a removable operating handle 14: at the upper end thereof and provided lwith-an intermediate enlarged threaded portion 15 whereby 1t is reciprocably mounted within the bushing 8. rllhe lower end of the stem 13 carries my improved valve point. For the purpose of receiving such point, the .lower end of the stem is provided with a spherical head 16 carried by a reduced stem 16a which is preferably threaded into the endof 'the valve stem and constitutes a reduced extension of the latter. This spherical head 16 provides a sort -of universal joint connection with the valve point.

The valve point comprises a conical body 17 which.. is adapted to engage the tapered portion 6 of the seat, said body being proin Fig. 3, the internal diameter of this exdiameter of the head`16 and the length of tension being somewhat greater than the such extension being such that, when spun or peened inwardly about the head, it will substantially engage the same, whereby f of the body 1.

there will be practically no lost motion or play in a longitudinal direction between the valve point andthe stem. Lateral clearance is provided, not only between the sides of the extension 18 and-the head 16, but between the contracted upper end of such extension and the reduced stem extension 16, as shown more particularly in Figs. 2 and 3.

The stem 13 may extend through a packing washer 19 and a gland nut 20, said nut being shown as threaded upon the upper thread `d portion 9 of the bushing 8, and packing 21 may be. inserted within the gland nut about thel stem 13. The packing 22 will also preferably. vbe inserted between' the nut-liange projection 12 and the top,

In Fig.y 4 my invention is shown as-applied to a gas stove valve. In thsview, 23 denotes the mixer tube,k conducting a mixture of gas and air from the usual mixer bell 24. 25

denotes the casing for the gas valve, 26 the gas supplyv pipe into which lthe vertical branch 27 of`the valve casing is threaded, in the usual manner. 27 is provided with a bore 28 vwhereby gas may be conducted to the chamber 29 formed frontof the valve stem. The chamber 29 is contracted at its front end, as shown at'30, to form an annular valve seat, and said chamber communicates with the mixer 24 through a bore 31, from which the bore 31 extends, said bore in turn being shown as communicating with the reduced bore 32 through which .gas is discharged into the mixer. The chamber 29 is provided at the front end of a bore extendingto the rear of the valve casing, said bore being threaded .at thel rear of said chamber for' the reception of the valve stemK 33, said valve stem being" provided with the ,usual removable operating handle34. The threaded front end of the valve stem- 33 is providedwith a reduced extension 35 having a rounded or spherical head 36, thereon, similar tothe parts l5 and lfof the), preceding modiiications. The' valve point comprises a body 37 which isvsimilartol the point ory body 17 and which is adapted to Icop'erate with the' seat 30. In ythis case,.,th'e tapered portion of the valve point merges'with a cylindrical portion `384 wl1'ich, isl extended a s'ulicient distance to enable it to -be spun or peened The vertical branch viding the cylindrical extension 38 is, while securing proper lateral play of the valve point upon itsV head 36, to also provide a bearing between the sides of the valve point and the walls of the chamber 29 and the rear threaded extension thereof, whereby the valve point cannot tilt sufficiently to cause it to drop downwardly within the chamber 29 or prevent it from entering the bore 31. A

This application covers the form of valve disclosed in my application No. 877,649, filed Dec. 17, 1914, now matured into Patent No. 1,217,119, and is, in some respects, a continuation of such application.

Having thus described my invention, what I claim is V l. A valve of the chaiacter described comprising a stem member and a valve point member, one of said members having a rounded head and a` neck connecting said head withthe main body of the member, said other member having a recessed end receivingJ the rounded head therewithin and contracted about such head, the valve point member having a conical portion adapted to enter the seat and a substantially cylindrical portion which is adapted to engage and a valve point having a recessed yend adapted to receive the rounded head therewithin Vand having the walls of said recessed end contracte-d toa smaller diameter than the diameter of the head whereby the valve point will be retained upon`thehead but will be permitted. to oscillate or play with.

respect to= said stem, the diameter of the seating portion of said valveploi'nt rangin from an amount much less thanjthat of the seat to an amount-,much greater than that of the seat.

3. In -a valve,a body having a passage -way,\a seat in said passageway, astem sub stantially coaxial with said-sea anda valve member having a universal connection with said stem; said member having a port-ion adapted Whenthe valve'is open to engage the wall of said passageway `and Aalso hav-v i'ng a tapering portion adapted when the valve is closed toengage said seat, the distance of the wall `from said wall` engaging portlon` 1n the closed' posltio'n oflthe valve being less than the distance of the tip end of the tapering' portion from a line parallel greatest diameters ofsaid tapered end being 10 to the stem and passing through an edge of not less than the distance of said guiding the valve seat; Y portion from the edge of said seat.

4. ln a valve, a body having a seat therein In testimony whereof l hereunto ax my 5 and a guiding portion. adjacent and substansignature in the presence of two Witnesses. tially perpendicular to said seat, a stem and JOHN HARRlS. a valve member articulated to said stem; and Witnesses: having a tapering` end adapted to enter said J. B. HULL, seat, the difference betweenV the least and BRENNAN B. WEST. 

